KR20200111424A - Awning apparatus using flexible solar cell module - Google Patents

Abstract

The present invention relates to an awning device using a flexible solar cell module. More specifically, the present invention relates to an awning device using a flexible solar cell module which supports solar power generation by introducing and withdrawing an awning in which the flexible solar cell module is formed on an upper surface from a housing, and supports stable power generation even when only part of the awning is withdrawn out to be exposed to sunlight. According to an embodiment of the present invention, the awning device using a flexible solar cell module is formed with the flexible solar cell module in accordance with a withdrawn state by determining the withdrawn state of the awning with the flexible solar cell module formed on an upper portion, selects only strings which can be generated by exposure to the sunlight among the plurality of strings each consisting of a plurality of solar cells to perform the power generation, and supports the stable power generation even when a part of the flexible solar cell module formed on the upper portion of the awning is exposed to the sunlight by blocking power generation of the string which is not exposed to the sunlight.

Description

Awning apparatus using flexible solar cell module TECHNICAL FIELD

The present invention relates to an awning device using a flexible solar cell module, and in more detail, the flexible solar cell module supports solar power generation by pulling in and withdrawing the awning formed on the upper surface from the housing, and only part of the awning film It relates to an awning device using a flexible solar cell module that supports stable power generation even when it is withdrawn to be exposed to.

At present, as the need for various environmental regulations for preservation of the environment, the danger of existing energy generation facilities such as thermal power generation or nuclear power generation, and problems due to the emission of various pollutants have emerged, new and renewable energy is in the spotlight.

Among these new and renewable energies, power generation using solar light, which is inexpensive to build a power generation facility and has high construction convenience, is receiving the most attention, and a solar cell module is generally used as a power generation facility using such solar light.

These solar cell modules are generally used in a form that is configured in a panel shape and fixed outdoors, but since the recent appearance of flexible solar cell modules, they have been applied to various objects such as roofs or awnings of vehicles.

However, when such a solar cell module is applied to the sunshade, solar power generation is not performed in a partial exposure state rather than the entire sunshade. There is a problem that the cell is damaged.

Korean Patent Publication No. 10-1040675

In order to solve the above problem, the present invention exposes a part of the awning film to sunlight during solar power generation through a flexible solar cell module configured on the upper part of the awning film configured to be pulled out of the housing or inserted into the housing. The purpose of this is to support not only to be able to support easily and stably power generation even in the state but also to prevent damage to the cell by controlling the voltage through wiring switching between cells configured in the solar cell module.

An awning device using a flexible solar cell module according to an embodiment of the present invention includes an awning film having a flexible solar cell module having a plurality of strings composed of a plurality of cells thereon, a housing part winding the awning film therein, and the awning film. A driving unit for drawing out from the housing unit or drawing into the housing unit, a sensor unit for sensing the driving unit to provide a sensing signal for a drawing state of the flexible solar cell module configured on the sunshade, and the flexible solar cell module A power receiving unit for receiving generated power generated through the power generation unit, a switch unit for selectively blocking power generation for each of the plurality of strings, and a sensing signal received from the sensor unit determine whether power generation is possible by determining the withdrawal state A control unit that determines and selectively connects or blocks each of the plurality of strings through the switch unit so that only at least one of the plurality of strings exposed to the outside from the housing unit generates power based on the withdrawal state when power generation is possible It may include.

As an example related to the present invention, the flexible solar cell module includes a plurality of switching elements connecting different strings in series or in parallel, further comprising a wiring switching unit for controlling the plurality of switching elements, the The control unit may be characterized in that the control unit controls the switching element through the wire switching unit based on the withdrawal state to change a connection relationship between cells constituting the string so that voltages of the at least one string exposed to the outside are the same. .

As an example related to the present invention, it may be characterized in that it further comprises a power storage unit for receiving the generated power received from the power receiving unit from the power receiving unit to store the generated power.

As an example related to the present invention, the flexible solar cell module configured on the sunshade may be configured in a form in which a plurality of strings are configured in a single panel or a panel in which a single string is formed is configured in a plurality.

As an example related to the present invention, in the control unit, setting information in which power generation of each of the plurality of strings is possible for each of a plurality of different withdrawal states is preset, and the control unit is configured with a drawing state according to the sensing signal and the It may be characterized in that it is determined whether to connect or disconnect for each of the plurality of strings based on the setting information, and connect or disconnect each of the plurality of strings through the switch unit.

An awning device using a flexible solar cell module according to an embodiment of the present invention determines a pull-out state of an awning film having a flexible solar cell module formed thereon, and configures the flexible solar cell module according to the pull-out state, and each of a plurality of solar cells Among the plurality of configured strings, only a few strings that are exposed to sunlight and capable of generating power are selected to generate power, and by blocking power generation of the strings not exposed to sunlight, only some of the flexible solar cell modules configured on the upper part of the awning are solar Even when exposed to light, there is an effect of supporting stable power generation.

In addition, the present invention prevents an abnormal increase in voltage of a specific string by changing the connection relationship of cells configured for each string exposed to the outside among a plurality of strings configured on the flexible solar cell module configured on the upper part of the sunshade. And support for stable development.

1 is a configuration diagram of a flexible solar cell module applied to an awning device using a flexible solar cell module according to an embodiment of the present invention.
2 and 3 are configuration diagrams of an awning device using a flexible solar cell module according to an embodiment of the present invention.
4 and 5 are exemplary views of photovoltaic power generation according to a withdrawal state of an awning device using a flexible solar cell module according to an embodiment of the present invention.
6 is a diagram illustrating an operation of preventing damage to a flexible solar cell module through wiring switching of an awning device using a flexible solar cell module according to an embodiment of the present invention.
7 is an operation flowchart of an awning device using a flexible solar cell module according to an embodiment of the present invention.

Hereinafter, detailed embodiments of the present invention will be described with reference to the drawings.

1 is a configuration diagram of a flexible solar cell module applied to an awning device using a flexible solar cell module according to an embodiment of the present invention. As shown, a plurality of solar cells A are grid The solar panel 1 configured in) shape may be cut to form a flexible solar cell module composed of one or more strings 14.

At this time, the flexible solar cell module may be configured in a thin film form having flexibility (flexible), and through this, the flexible solar cell module is applied to objects of various shapes and thus the plurality of solar cells (Cell) ( Hereinafter, power generation through sunlight may be generated through the cell) (A).

2 and 3 are configuration diagrams of an awning device using the flexible solar cell module according to an embodiment of the present invention, as shown, a solar power generation structure 10 consisting of a sunshade 13 and a housing 12 ), and a controller 100 that controls the photovoltaic power generation structure 10 and receives and stores generated power generated by the photovoltaic power generation structure 10.

At this time, the solar power generation structure 10 is a flexible solar cell module consisting of a plurality of strings (14) consisting of a plurality of cells (A) as shown in the sunshade film (13) is configured on the upper (or upper surface) ), a housing part 12 for winding the awning film 13 therein, and a driving part 11 for pulling out the awning film 13 from the housing part 12 or introducing the awning film 13 into the housing part 12. It can be configured to include.

In addition, the solar power generation structure 10 may form a shade on the ground through the awning film 13 when one side of the housing part 12 is coupled to the wall and the awning film 13 is pulled out. In addition, power generation using sunlight may be generated through the flexible solar cell module configured on the upper portion of the awning layer 13.

In this case, the flexible solar cell module configured in the awning layer 13 may have a form in which a plurality of strings 14 are configured in a single panel, or a panel in which a single string 14 is formed may be configured in a plurality.

In addition, the driving unit 11 pulls the awning film 13 wound around the housing unit 12 to the outside based on a control signal received from the control unit 160 configured in the controller 100 or a user operation. Or it can be introduced into the interior of the housing 12.

Meanwhile, as shown, the controller 100 includes a sensor unit 110, a switch unit 120, a wiring switching unit 130, a power receiving unit 140, a power storage unit 150, and a control unit. It may be configured to include 160.

In addition, the sensor unit 110 includes a sensor that senses the driving unit 11, and generates a sensing signal for the withdrawal state of the awning film 13 by sensing the driving unit 11 through the sensor. Then, it may be transmitted to the control unit 160.

In addition, the power receiving unit 140 may receive generated power generated through the flexible solar cell module, and may provide power to the control unit 160.

In addition, the switch unit 120 may selectively connect or cut off power generation for each of a plurality of strings 14 configured in the flexible solar cell module. For example, the switch unit 120 may include the power receiving unit for each string 14 The connection with (140) can be selectively connected or blocked.

In addition, the power storage unit 150 may be configured to receive generated power from the power receiving unit 140 and store the generated power. For example, the power storage unit 150 may include a storage battery. have.

In addition, the control unit 160 determines whether power generation is possible by determining the withdrawal state of the flexible solar cell module according to the withdrawal of the sunshade 13 based on the sensing signal received from the sensor unit 110, and When possible, based on the withdrawal state, only one or more of the strings 14 exposed to the outside from the housing 12 may generate generated power through the switch 120 so that the string ( 14) can be selectively connected or disconnected.

In this case, the control unit 160 may be configured as a microcontroller unit (MCU) for controlling each component of the controller 100.

According to the above-described configuration, as shown in FIG. 4, when only a part of the flexible solar cell module configured in the awning film 13 is exposed to the outside from the housing part 12, only some strings 14a, 14b, and 14c Since power generation occurs, the flexible solar cell module may be damaged, so that the entire flexible solar cell module (14a, 14b, 14c, 14d, 14e) is exposed to the outside as shown in FIG. 5. The awning film 13 has to be pulled out from the awning film 13, but the control unit 160 according to the embodiment of the present invention has only a part of the flexible solar cell module configured in the awning film 13 according to the pulling out of the awning film 13 as shown in FIG. Even when exposed to, one or more strings (14a, 14b, 14c) exposed to the outside among the plurality of strings (14a, 14b, 14c, 14d, 14e) configured in the flexible solar cell module are identified based on the sensing signal. After that, generated power may be generated by connecting only the one or more strings 14a, 14b, and 14c exposed to the outside with the power receiving unit 140 through the switch unit 120, through which the flexible solar cell module It can support stable power generation without fear of damage.

In this case, as shown in FIG. 4, the control unit 160 blocks the connection between one or more strings 14d and 14e that are not exposed to the outside and the power receiver 140 through the switch unit 120 to be stable. It can support development to occur.

In addition, as shown in FIG. 5, when the entire flexible solar cell module is exposed to the outside, the controller 160 connects all the strings 14a, 14b, 14c, 14d, and 14e to the power receiver 140 It can be operated to generate generated power.

Meanwhile, setting information on whether power generation of each of the plurality of strings 14 can be generated according to different withdrawal states of the flexible solar cell module according to the sensing signal may be preset in the controller 160.

Accordingly, the controller 160 may identify a string 14 to be connected to the power receiver 140 among the plurality of strings 14 based on the withdrawal state according to the sensing signal and the setting information, Accordingly, it is possible to connect or disconnect each of the plurality of strings 14 through the switch unit 120 by determining whether to connect or disconnect each of the plurality of strings 14.

As an example, when the driving unit 11 inserts or extracts the awning layer 13 from the housing unit 12 through rotation, the sensor unit 110 senses the number of rotations and the rotation direction of the driving unit 11 One sensing signal may be transmitted to the controller 160.

In addition, the control unit 160 includes the number of strings 14 exposed to the outside according to a plurality of different rotation states set in advance and the identification information for each string 14 belonging to the number, which is set differently for each rotation state. It can be set in advance.

Accordingly, the controller 160 identifies the current rotation state corresponding to the withdrawal state of the flexible solar cell module according to the number of rotations and the rotation direction according to the sensing signal, and the current rotation state based on the setting information. According to the number of externally exposed strings 14 identified correspondingly and identification information for each string 14 belonging to the number, the power receiver 140 is connected to the power receiver 140 for each string 14 belonging to the number, and The string 14 that does not belong may block the connection to the power receiver 140.

Through the above-described configuration, the awning device using the flexible solar cell module according to the embodiment of the present invention determines the withdrawal state of the flexible solar cell module according to the withdrawal of the awning layer 13 having the flexible solar cell module formed thereon, The flexible solar cell module is configured according to the state, and only the strings 14 that are exposed to sunlight and capable of generating power are selected from among a plurality of strings 14 each configured with a plurality of solar cells A to generate power, By blocking the power generation of the string 14 that is not exposed to sunlight, it is possible to support stable power generation even when only some of the flexible solar cell modules configured on the upper portion of the sunshade 13 are exposed to sunlight.

On the other hand, in the above-described configuration, when only some of the strings 14 of the plurality of strings 14 generate electricity, the voltage of the specific string 14 may increase and thus the cell A may be damaged. In order to prevent such damage, an awning device using a solar cell module changes a connection relationship between cells A constituting each of one or more strings 14 exposed to the outside among a plurality of strings 14 to prevent such damage. It is possible to prevent the voltage from rising abnormally, which will be described in detail with reference to FIG. 6.

As shown, the flexible solar cell module may be configured to include a plurality of switching elements 15 connecting the strings 14a, 14b, 14c in series or in parallel, and the wiring switching unit 130 May be configured to control the plurality of switching elements 15.

Accordingly, the control unit 160 controls the switching element 15 through the wiring switching unit 130 based on the drawing state according to the sensing signal, thereby controlling one or more strings 14a, 14b, and 14c exposed to the outside. It is possible to change the connection relationship between the cells A configured in each of the one or more strings 14a, 14b, and 14c exposed to the outside so that the respective voltages are the same.

Through this, the control unit 160 changes the connection relationship between the cells A configured for each of the strings 14a, 14b, and 14c exposed to the outside among the plurality of strings 14 configured in the flexible solar cell module through wiring switching. Thus, it is possible to prevent the voltage of a specific string from rising abnormally and to support stable power generation.

7 is a flowchart illustrating an operation of the controller 100 configured in an awning device using a flexible solar cell module according to an embodiment of the present invention.

As shown, the control unit 160 of the controller 100 pulls out the awning film 13 including the flexible solar cell module from the housing part 12 or into the housing part 12, the awning film ( 13) Based on the sensing signal received from the sensor unit that senses the driving state of the driving unit 11 for drawing in, it is possible to check the drawing state of the flexible solar cell module (S1).

In addition, the control unit 160 may determine that power generation is possible when at least one of the plurality of strings 14 configured in the flexible solar cell module is exposed to the outside according to the withdrawal state (S2), and a preset plurality The number of one or more strings 14 that can be developed according to different withdrawal states of and identification information for each string 14 belonging to the number are set, and the setting information preset (stored) in the control unit 160 and the sensing signal are On the basis of the withdrawal state, one or more strings 14 exposed to sunlight by being exposed to the outside in the flexible solar cell module configured in the awning layer 13 may be identified.

Accordingly, the control unit 160 controls the switch unit 120 that selectively connects each of the plurality of strings 14 to the power receiver 140 to generate electricity only from the one or more strings 14 exposed to the outside. Power may be received by the power receiver 140 and a connection between the string 14 and the power receiver 140 that is not exposed to the outside may be cut off (S3).

In addition, when only a part of the plurality of strings 14 constituting the flexible solar cell module is exposed to the outside and voltage adjustment is required (S4), the flexible By controlling at least one of the plurality of switching elements 15 configured in the solar cell module to connect different strings 14 in series or parallel to each other, the voltages between the one or more strings 14 exposed to the outside are The connection relationship between the cells A constituting the string 14 may be changed to be the same (S5).

Through this, the control unit 160 may control the voltages between one or more strings 14 capable of generating power to be the same, thereby supporting stable power generation through the flexible solar cell module configured in the awning film 13 (S6). ).

The various devices and components described herein may be implemented by hardware circuitry (eg, CMOS-based logic circuitry), firmware, software, or a combination thereof. For example, it may be implemented using transistors, logic gates, and electronic circuits in the form of various electrical structures.

The above contents may be modified and modified without departing from the essential characteristics of the present invention by those of ordinary skill in the technical field to which the present invention pertains. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain the technical idea, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

10: photovoltaic structure 11: driving unit
12: housing part 13: sunshade
14: string 15: switching element
100: controller 110: sensor unit
120: switch unit 130: wiring switching unit
140: power receiver 150: power storage
160: control unit

Claims (5)

A flexible solar cell module comprising a plurality of strings consisting of a plurality of cells is formed on the top of the sunshade;
A housing unit winding the awning film therein;
A driving unit for drawing the awning film out of the housing unit or introducing it into the housing unit;
A sensor unit that senses the driving unit and provides a sensing signal for a pull-out state of the flexible solar cell module configured on the sunshade;
A power receiver for receiving generated power generated through the flexible solar cell module;
A switch unit selectively blocking power generation for each of the plurality of strings; And
Based on the sensing signal received from the sensor unit, the withdrawal state is determined to determine whether power generation is possible, and when power generation is possible, only one or more strings exposed to the outside from the housing unit among the plurality of strings are determined based on the withdrawal state. A control unit that selectively connects or blocks each of a plurality of strings through the switch unit to generate generated power
An awning device using a flexible solar cell module comprising a.
The method according to claim 1,
The flexible solar cell module includes a plurality of switching elements connecting different strings in series or in parallel,
Further comprising a wiring switching unit for controlling the plurality of switching elements,
The control unit controls the switching element through the wiring switching unit based on the withdrawal state to change a connection relationship between cells constituting a string so that voltages of one or more strings exposed to the outside are the same. An awning device using a solar cell module.
The method according to claim 1,
An awning device using a flexible solar cell module, further comprising: a power storage unit receiving the generated power received from the power receiving unit and storing the generated power.
The method according to claim 1,
An awning device using a flexible solar cell module, characterized in that the flexible solar cell module configured in the sunshade is a form in which a plurality of strings are formed in a single panel or a panel in which a single string is formed is formed in a plurality.
The method according to claim 1,
In the control unit, setting information in which power generation of each of the plurality of strings is possible for each of a plurality of different withdrawal states is preset,
The control unit connects or blocks each of the plurality of strings through the switch unit by determining whether to connect or disconnect each of the plurality of strings based on the withdrawal state according to the sensing signal and the setting information. An awning device using a module.

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